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CVE-2023-29141 — Vulnerability in mediawiki/core — CVE Details

CRITICAL

X-Forwarded-For header allows brute-forcing autoblocked IP addresses

Published March 31, 2023Updated February 18, 2025Source: osv

Summary

An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.

Advisory Timeline

  • First published March 31, 2023 (1291 days ago).
  • Last revised February 18, 2025 — 690 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update mediawiki/core to 1.35.10 or later
composer require "mediawiki/core:^1.35.10"
Composer
Update mediawiki/core to 1.39.3 or later
composer require "mediawiki/core:^1.39.3"
Composer
Update mediawiki/core to 1.38.6 or later
composer require "mediawiki/core:^1.38.6"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
mediawiki/core
packagist
1.20.3, 1.20.4, 1.20.5, 1.20.6 (+122 more)1.35.10
mediawiki/core
packagist
1.39.0, 1.39.1, 1.39.21.39.3
mediawiki/core
packagist
1.38.0, 1.38.1, 1.38.2, 1.38.3 (+2 more)1.38.6

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2023-29141?
X-Forwarded-For header allows brute-forcing autoblocked IP addresses This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2023-29141?
CVE-2023-29141 affects mediawiki/core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-29141 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-5vj8-g3qg-4qh6
BIT-mediawiki-2023-29141

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